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Subclinical Atherosclerosis and Ambulatory Blood Pressure in Children with Metabolic Syndrome

Overview
Journal Pediatr Nephrol
Specialties Nephrology
Pediatrics
Date 2014 Jun 8
PMID 24906664
Citations 1
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Abstract

Background: The metabolic syndrome (MS) has reached epidemic proportions worldwide. This syndrome is associated with cardiovascular risk factors, including functional and structural cardiac and vascular changes. The aim of our study was to evaluate subclinical atherosclerosis and its associated risk factors in children with MS.

Methods: The study cohort comprised 52 children with MS and 38 age- and sex-matched healthy children. The diagnosis of MS was made according to criteria adopted by the World Health Organization. Blood pressure based on 24-h ambulatory blood pressure monitoring (ABPM), carotid intima-media thickness (cIMT), carotid distensibility coefficient (DC) and flow-mediated endothelium-dependent dilation (EDD) were assessed in all children.

Results: We found a significantly higher cIMT in children with MS than in healthy children, but carotid DC and flow-mediated EDD were lower in the former. Multivariate analysis revealed that a higher cIMT was independently associated with a higher nighttime systolic blood pressure (SBP) and lower high-density lipoprotein-cholesterol (β = 0.386, p = 0.011 and β = 0.248, p = 0.042, respectively). Also, higher nighttime SBP remained an independent predictor of lower DC (β = 0.495, p = 0.009), and higher 24-h SBP was the only independent predictor for a lower EDD (β = 0.532, p = 0.004).

Conclusions: Atherosclerotic vascular changes were common among our pediatric patients with MS and easily determined by high-resolution ultrasound imaging. In particular, subclinical atherosclerosis was clearly associated with nocturnal or 24-h systolic hypertension as measured by ABPM. We therefore recommend that subclinical vascular changes and AMBP measurements should be used as diagnostic markers to predict atherosclerotic risks in this pediatric patient group.

Citing Articles

Effect of plasma NOx values on cardiac function in obese hypertensive and normotensive pediatric patients.

Akcaboy M, Kula S, Goktas T, Nazliel B, Terlemez S, Celik N Pediatr Nephrol. 2015; 31(3):473-83.

PMID: 26482254 DOI: 10.1007/s00467-015-3223-2.

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